Hello everyone, today we are going to discuss a topic that is both frustrating and rewarding in the industrial field—how to make the “old gentleman” Modbus and the “modern youth” TCP/IP shake hands and make peace. Last year, while debugging a sewage treatment plant project, I encountered a “generation gap” issue between these two protocols, … Read more
Introduction **Hello everyone!** Today, I want to talk to you about a frequently overlooked but extremely important part of PLC programming —hardware programming interfaces. “Isn’t it just about plugging in a cable?” **You might think so. But I want to tell you that **choosing the right programming interface can improve your debugging efficiency by over … Read more
Free for commercial use! An industrial Internet of Things platform with over 1500 components. IoT MQTT and CoAP, which one is your favorite? The lightweight IoT protocol CoAP. In the Industrial Internet of Things (IIoT), industrial devices often require frequent data collection and communication. Here, we must mention a lightweight protocol: CoAP (Constrained Application Protocol). … Read more
Introduction Hello everyone! Today, I want to share an exciting technology for engineers in the industrial communication field—PLC Protocol Penetration. Don’t be intimidated by this technical term, I will unveil its mysteries in the most relatable way.Imagine: PLCs in the workshop can directly “talk” to cloud servers, and devices from different brands can collaborate seamlessly … Read more
On July 22, 2016, the EtherCAT Technology Association reached another milestone in the development of the EtherCAT market in mainland China: surpassing 500 local members! Since the establishment of the EtherCAT Technology Association’s China representative office in Beijing in 2007, the number of ETG members in mainland China has grown from fewer than 10 to … Read more
Image: Tech Future Blue Business Modern Public Account Cover Image.jpg Let an experienced engineer guide you through the Siemens S7-400 rolling mill control system upgrade 🛠️ “Hey, Lao Wang, I heard your factory recently upgraded to S7-400 for rolling mill control? How’s it working?” “Don’t mention it, Lao Li, the equipment is in place, but … Read more
These communication standards play different roles in industrial automation. Let me use a traffic system analogy to help you understand: Basic Positioning of the Four Standards 1. RS-232: A One-to-One Small Road Features: The earliest serial communication standard (1969) Point-to-point full-duplex communication (simultaneous two-way) Single-ended signal transmission (susceptible to interference) Typical transmission distance ≤ 15 … Read more
Modbus–The Common Language of Industrial Communication Why Do We Need Modbus? —— How the Common Language of Industrial Communication Ends the “Babel Tower Dilemma” 1. The Era Before Modbus: The “Babel Tower Dilemma” of Industrial Communication In the factory workshops of the 1970s, the dialogue between equipment was like a chaotic “Babel Tower”: Device A … Read more
Click on the above “ Technical Training ”, select “Pin to Top” 130,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. Introduction In recent years, computer control has been rapidly promoted and popularized. Industrial control computers, PLCs, frequency converters, touch screens, robots, and flexible manufacturing systems are widely … Read more
